El la polvo de la tero
Subtitle: enkonduko en la grundosciencon
By: William Frederick Rolt.
Series: Stafeto Beletraj kajeroj ;; 34
Publisher: J. Régulo Eldonisto
Published: 1967
Place of publication: La Laguna [Tenerife]
Language: epo
Number of pages: 134
Subjects: Soil science.
Notes: Includes bibliographical references (p. 131-132).